Appoquinimink River

Appoquinimink River
River
The Appoquinimink River in Odessa in 2006
Country	United States
State	Delaware
Source
- location	Near Townsend
- elevation	23 ft (7 m) (at Wiggins Mill Pond, approx. 1 mi/2 km downstream of source)
- coordinates	39°22′52″N 75°44′14″W / 39.38111°N 75.73722°W / 39.38111; -75.73722
Mouth	Delaware Bay
- location	Near Odessa
- elevation	0 ft (0 m)
- coordinates	39°26′52″N 75°34′49″W / 39.44778°N 75.58028°W / 39.44778; -75.58028Coordinates: 39°26′52″N 75°34′49″W / 39.44778°N 75.58028°W / 39.44778; -75.58028
Length	15 mi (24 km)
Basin	47 sq mi (122 km2)
Location of the mouth of the Appoquinimink River

The Appoquinimink River is a river flowing to Delaware Bay in northern Delaware in the United States. The river is 15.3 miles (24.6 km) long and drains an area of 47 square miles (120 km²) on the Atlantic Coastal Plain.

The Appoquinimink flows for its entire length in southern New Castle County. It rises approximately 2 miles (3 km) west of Townsend and flows generally eastwardly, south of Middletown and past Odessa, to its mouth at the northern end of Delaware Bay, approximately 3 miles (5 km) east of Odessa. In its upper course the river passes through two man-made lakes, Wiggins Mill Pond and Noxontown Lake; the river is tidal to the dam at Noxontown Lake, and salinity from Delaware Bay typically affects the lowermost 5 miles (8 km) of the river. The lower 7 miles (11 km) of the river are considered to be navigable by the U.S. Army Corps of Engineers.

It collects three named tributaries along its course: From the north, Deep Creek, 4.2 miles (6.8 km) long (also known historically as the "North Appoquinimink River"); and Drawyers Creek, 8.2 miles (13.2 km) long; and from the south, Hangmans Run.

According to 2002 data from the United States Environmental Protection Agency, 54.9% of the Appoquinimink River watershed is occupied by agricultural uses (predominantly soybeans, corn, and wheat); 15.1% is residential; 9.9% is wetland; and 8.8% is forested.